linux-kernel - [PATCH 03/24] btrfs: add setlease file operation

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Message-Id: <20260108-setlease-6-20-v1-3-ea4dec9b67fa@kernel.org>
Date: Thu, 08 Jan 2026 12:12:58 -0500
From: Jeff Layton <jlayton@...nel.org>
To: Luis de Bethencourt <luisbg@...nel.org>, 
 Salah Triki <salah.triki@...il.com>, Nicolas Pitre <nico@...xnic.net>, 
 Christoph Hellwig <hch@...radead.org>, Jan Kara <jack@...e.cz>, 
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Cc: linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org, 
 linux-btrfs@...r.kernel.org, linux-erofs@...ts.ozlabs.org, 
 linux-ext4@...r.kernel.org, linux-f2fs-devel@...ts.sourceforge.net, 
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 linux-cifs@...r.kernel.org, samba-technical@...ts.samba.org, 
 Jeff Layton <jlayton@...nel.org>
Subject: [PATCH 03/24] btrfs: add setlease file operation

Add the setlease file_operation to btrfs_file_operations and
btrfs_dir_file_operations, pointing to generic_setlease.  A future
patch will change the default behavior to reject lease attempts with
-EINVAL when there is no setlease file operation defined. Add
generic_setlease to retain the ability to set leases on this
filesystem.

Signed-off-by: Jeff Layton <jlayton@...nel.org>
---
 fs/btrfs/file.c  | 2 ++
 fs/btrfs/inode.c | 2 ++
 2 files changed, 4 insertions(+)

diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c
index 1abc7ed2990e0e956dc0550cba8b0cfc90109e65..aca2b541e72df3638bdc6cd7551a018ae959039b 100644
--- a/fs/btrfs/file.c
+++ b/fs/btrfs/file.c
@@ -10,6 +10,7 @@
 #include <linux/string.h>
 #include <linux/backing-dev.h>
 #include <linux/falloc.h>
+#include <linux/filelock.h>
 #include <linux/writeback.h>
 #include <linux/compat.h>
 #include <linux/slab.h>
@@ -3867,6 +3868,7 @@ const struct file_operations btrfs_file_operations = {
 	.remap_file_range = btrfs_remap_file_range,
 	.uring_cmd	= btrfs_uring_cmd,
 	.fop_flags	= FOP_BUFFER_RASYNC | FOP_BUFFER_WASYNC,
+	.setlease	= generic_setlease,
 };
 
 int btrfs_fdatawrite_range(struct btrfs_inode *inode, loff_t start, loff_t end)
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 599c03a1c5737ee4129c0bc1743b345847fa5dfc..5d1bdc862ed2711e349af085512f3bda6cb63278 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -8,6 +8,7 @@
 #include <linux/bio.h>
 #include <linux/blk-cgroup.h>
 #include <linux/file.h>
+#include <linux/filelock.h>
 #include <linux/fs.h>
 #include <linux/fs_struct.h>
 #include <linux/pagemap.h>
@@ -10573,6 +10574,7 @@ static const struct file_operations btrfs_dir_file_operations = {
 #endif
 	.release        = btrfs_release_file,
 	.fsync		= btrfs_sync_file,
+	.setlease	= generic_setlease,
 };
 
 /*

-- 
2.52.0